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EXAM: Patho NURS 611 Maryville Exam 3 with Complete Solutions

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  • NUR 611

EXAM: Patho NURS 611 Maryville Exam 3 with Complete Solutions What imbalance lessens the rate of secretion of parathyroid hormone (PTH)? a.Increased serum calcium levels b.Decreased serum magnesium levels c.Decreased levels of thyroid-stimulating hormone d.Increased levels of thyroid-stimul...

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  • September 1, 2024
  • 231
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NUR 611
  • NUR 611
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EXAM: Patho NURS 611 Maryville Exam 3 with
Complete Solutions


What imbalance lessens the rate of secretion of parathyroid hormone (PTH)?


a.Increased serum calcium levels


b.Decreased serum magnesium levels


c.Decreased levels of thyroid-stimulating hormone


d.Increased levels of thyroid-stimulating hormone CORRECT ANS-A. The overall effect of

parathyroid hormone (PTH)is to increase serum calcium and to decrease serum phosphate

concentration. The other presented imbalances will not affect PTH in the described fashion.




Regulation of the release of catecholamines from the adrenal medulla is an example of which

type of regulation?


a.Negative feedback


c.Neural


b.Positive feedback


d.Physiologic CORRECT ANS-c. The release of hormones occurs either in response to an

alteration in the cellular environment or in the process of maintaining a regulated level of

certain hormones or certain substances. Several different mechanisms, one of which is neural

control (e.g., stress-induced release of catecholamines from the adrenal medulla), regulate

, EXAM: Patho NURS 611 Maryville Exam 3 with
Complete Solutions


the release of hormones. The remaining options do not accurately describe the example

given.




How does a faulty negative-feedback mechanism result in a hormonal imbalance?


a.Hormones are not synthesized in response to cellular and tissue activities.


b.Decreased hormonal secretion is a response to rising hormone levels.


c.Too little hormone production is initiated.


d.Excessive hormone production results from a failure to turn off the system. CORRECT

ANS-D. Negative-feedback systems are important in maintaining hormones within physiologic

ranges. The lack of negative-feedback inhibition on hormonal release often results in

pathologic conditions. Excessive hormone production, which is the result of the failure to turn

off the system, can cause various hormonal imbalances and related conditions. The correct

option is the only accurate description of this hormonal function.




Which substance is a water-soluble protein hormone?


a.Thyroxine


c.Follicle-stimulating hormone

, EXAM: Patho NURS 611 Maryville Exam 3 with
Complete Solutions


b.Aldosterone


d.Insulin CORRECT ANS-D. Peptide or protein hormones, such as insulin, pituitary,

hypothalamic, and parathyroid, are water soluble and circulate in free (unbound) forms. All

the remaining options are fat-soluble hormones.




Which of the following is a lipid-soluble hormone?


a.Cortisol


c.Epinephrine


b.Oxytocin


d.Growth hormone CORRECT ANS-A


Cortisol and adrenal androgens are lipid-soluble hormones and are primarily bound to a

carrier or transport protein in circulation. The other options are water-soluble hormones.




Most protein hormones are transported in the bloodstream and are:


a.Bound to a lipid-soluble carrier


b.Free in an unbound, water-soluble form

, EXAM: Patho NURS 611 Maryville Exam 3 with
Complete Solutions


c.Bound to a water soluble-binding protein


d.Free because of their lipid-soluble chemistry CORRECT ANS-B


Peptide or protein hormones, such as insulin, pituitary, hypothalamic, and parathyroid, are

water soluble and circulate in free (unbound) forms. The other options are not true

statements related to the transport of protein hormones.




when insulin binds its receptors on muscle cells, an increase in glucose uptake by the muscle

cells is the result. This is an example of what type of effect by a hormone?


a.Pharmacologic


c.Synergistic


b.Permissive


d.Direct CORRECT ANS-D


Direct effects are the obvious changes in cell function that specifically result from the

stimulation by a particular hormone. The other options are not used to identify the described

effect.

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